结、直肠癌肝转移者，行转移灶切除是唯一有望治疗的手段，5年生存率为20～39％，手术操作技能提高、术中超声波（IOUS）定位，使得肝切术已属较为安全的手术，死亡率低于5％故近20年来应用已趋广泛。转移性肝癌，虽解剖性肝切除并非作为预后的指标，但病灶邻近或已侵及肝内主 In patients with colon and rectal cancer liver metastases, metastatic metastases resection is the only promising treatment. The 5-year survival rate is 20 to 39%. The surgical operation skills and intraoperative ultrasound (IOUS) positioning make liver resection safer. In the case of surgery, the mortality rate was less than 5%, so the application has become widespread in the past 20 years. Metastatic liver cancer, although anatomic liver resection is not an indicator of prognosis, the lesions are adjacent or have invaded the liver.